Passion flower is often used as a natural remedy for anxiety and insomnia. Some studies have indicated that passion flower extracts can help reduce anxiety symptoms and improve sleep quality without causing significant side effects. It can also help protect cells from oxidative stress and damage caused by free radicals. Passion flower is also investigated for its potential effects on mood disorders, such as depression and mood swings. Additionally, it has been studied for its role in managing symptoms of menopause and attention deficit hyperactivity disorder (ADHD).